Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(39), P. 18213 - 18250
Published: Jan. 1, 2024
For
clean
hydrogen
(H
2
)
production,
electrocatalysis
and
photocatalysis
are
widely
regarded
as
promising
technologies
to
counter
the
increasing
energy
crisis.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(35)
Published: June 25, 2024
Abstract
Investigating
clean
and
sustainable
hydrogen
generation
from
water
splitting
requires
cost‐effective
highly
efficient
electrocatalysts
for
the
evolution
reaction
(HER).
Ruthenium
(Ru)‐based
heterostructure
catalysts
have
emerged
as
promising
alternatives
to
precious
Pt,
offering
significant
potential
overcome
current
bottlenecks.
Recent
advancements
in
Ru‐based
focused
on
achieving
a
balance
between
catalytic
activity
stability.
An
overview
of
these
developments
provides
insights
into
mechanisms
facilitates
development
novel
catalysts.
This
review
begins
with
an
exploration
enhanced
catalysts,
followed
by
critical
summary
synthetic
strategies
employed
fabricate
their
performances
HER.
Attention
is
then
directed
experimental
endeavors
aimed
at
enhancing
HER
performance
Finally,
opportunities
challenges
developing
perspectives
material
design
synthesis
are
discussed.
Through
discussions,
comprehensive
understanding
inspiring
future
research
directions
aim
provide.
Carbon Energy,
Journal Year:
2024,
Volume and Issue:
6(9)
Published: June 11, 2024
Abstract
Interfacial
electronic
structure
modulation
of
nickel‐based
electrocatalysts
is
significant
in
boosting
energy‐conversion‐relevant
urea
oxidation
reaction
(UOR).
Herein,
porous
carbon
nanofibers
confined
mixed
Ni‐based
crystal
phases
Ni
2
P
and
NiF
are
developed
via
fluorination
phosphorization
coated
nanofiber
(Ni
P/NiF
/PCNF),
which
possess
sufficient
mesoporous
optimized
Gibbs
adsorption
free
energy
by
phase‐induced
charge
redistribution.
This
novel
system
further
reduces
the
barrier
improves
activity
addressing
challenges
low
intrinsic
activity,
difficulty
active
site
formation,
insufficient
synergism.
A
considerably
high
current
density
254.29
mA
cm
−2
reached
at
1.54
V
versus
reversible
hydrogen
electrode
on
a
glass
electrode,
cell
voltage
requires
1.39
to
get
10
generation,
with
very
good
stability,
about
190
mV
less
than
that
traditional
water
electrolysis.
The
facile
phase
formation
transfer
ability
induced
asymmetric
redistribution
found
interface,
where
molecules
tend
bond
atoms
surface
heterojunction,
rate‐determining
step
changed
from
CO
desorption
fourth
H‐atom
deprotonation.
work
reveals
catalyst
interfacial
polarity
for
energy‐relevant
catalysis
reactions.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
63(34), P. 16037 - 16046
Published: Aug. 9, 2024
The
core
principles
of
multicomponent
interface
and
electronic
structure
engineering
are
essential
in
designing
high-performance
catalysts
for
the
oxygen
evolution
reaction
(OER).
However,
combining
these
aspects
within
a
catalyst
is
significant
challenge.
In
this
investigation,
novel
approach
involving
development
hybrid
Ir-doped
CoMO4–Co(OH)2
(M
=
W
Mo)
hollow
nanoboxes
was
introduced,
enabling
remarkably
efficient
water
oxidation
electrocatalysis.
Constructed
from
ultrathin
nanosheet-assembled
nanoboxes,
structures
boast
wealth
active
centers
intermediate
species,
which
turn
enhance
both
charge
transfer
mass
transport
capabilities.
Moreover,
compelling
synergistic
effects
arising
interaction
between
CoMO4
Co(OH)2
significantly
bolster
OER
electrocatalysis
by
facilitating
electron
transfer.
introduction
Ir
atoms
serves
to
strategically
adjust
structure,
fine-tune
its
state,
operate
as
electrocatalysis,
thus
diminishing
overpotential.
This
configuration
results
Ir-CoWO4–Co(OH)2
Ir-CoMoO4–Co(OH)2
exhibiting
impressively
low
overpotentials
252
261
mV,
respectively,
10
mA
cm–2.
Utilized
conjunction
with
Pt/C
two-electrode
system
overall
splitting,
mere
1.53
V
cell
potential
needed
achieve
desired
cm–2
current
density.